Merge branch 'maint'

* maint:
  config: add test cases for empty value and no value config variables.
  cvsimport: have default merge regex also match beginning of commit message
  git clone -s documentation: force a new paragraph for the NOTE
  status: suggest "git rm --cached" to unstage for initial commit
  Protect get_author_ident_from_commit() from filenames in work tree
  upload-pack: Initialize the exec-path.
  bisect: use verbatim commit subject in the bisect log
  git-cvsimport.txt: fix '-M' description.
  Revert "pack-objects: only throw away data during memory pressure"

Author: gitster

Documentation/git-clone.txt

@@ -62,12 +62,13 @@ OPTIONS
 	.git/objects/info/alternates to share the objects
 	with the source repository.  The resulting repository
 	starts out without any object of its own.
-	*NOTE*: this is a possibly dangerous operation; do *not* use
-	it unless you understand what it does. If you clone your
-	repository using this option, then delete branches in the
-	source repository and then run linkgit:git-gc[1] using the
-	'--prune' option in the source repository, it may remove
-	objects which are referenced by the cloned repository.
++
+*NOTE*: this is a possibly dangerous operation; do *not* use
+it unless you understand what it does. If you clone your
+repository using this option, then delete branches in the
+source repository and then run linkgit:git-gc[1] using the
+'--prune' option in the source repository, it may remove
+objects which are referenced by the cloned repository.
 
 
 

Documentation/git-cvsimport.txt

@@ -107,8 +107,8 @@ If you need to pass multiple options, separate them with a comma.
 
 -M <regex>::
 	Attempt to detect merges based on the commit message with a custom
-	regex. It can be used with '-m' to also see the default regexes.
-	You must escape forward slashes.
+	regex. It can be used with '-m' to enable the default regexes
+	as well. You must escape forward slashes.
 
 -S <regex>::
 	Skip paths matching the regex.

builtin-pack-objects.c

@@ -1464,7 +1464,7 @@ static unsigned int check_delta_limit(struct object_entry *me, unsigned int n)
 	return m;
 }
 
-static unsigned long free_unpacked_data(struct unpacked *n)
+static unsigned long free_unpacked(struct unpacked *n)
 {
 	unsigned long freed_mem = sizeof_delta_index(n->index);
 	free_delta_index(n->index);
@@ -1474,12 +1474,6 @@ static unsigned long free_unpacked_data(struct unpacked *n)
 		free(n->data);
 		n->data = NULL;
 	}
-	return freed_mem;
-}
-
-static unsigned long free_unpacked(struct unpacked *n)
-{
-	unsigned long freed_mem = free_unpacked_data(n);
 	n->entry = NULL;
 	n->depth = 0;
 	return freed_mem;
@@ -1520,7 +1514,7 @@ static void find_deltas(struct object_entry **list, unsigned *list_size,
 		       mem_usage > window_memory_limit &&
 		       count > 1) {
 			uint32_t tail = (idx + window - count) % window;
-			mem_usage -= free_unpacked_data(array + tail);
+			mem_usage -= free_unpacked(array + tail);
 			count--;
 		}
 
@@ -1553,9 +1547,6 @@ static void find_deltas(struct object_entry **list, unsigned *list_size,
 			if (!m->entry)
 				break;
 			ret = try_delta(n, m, max_depth, &mem_usage);
-			if (window_memory_limit &&
-			    mem_usage > window_memory_limit)
-				mem_usage -= free_unpacked_data(m);
 			if (ret < 0)
 				break;
 			else if (ret > 0)

git-bisect.sh

@@ -135,7 +135,7 @@ bisect_write() {
 		*)		die "Bad bisect_write argument: $state" ;;
 	esac
 	git update-ref "refs/bisect/$tag" "$rev"
-	echo "# $state: "$(git show-branch $rev) >>"$GIT_DIR/BISECT_LOG"
+	echo "# $state: $(git show-branch $rev)" >>"$GIT_DIR/BISECT_LOG"
 	test -z "$nolog" && echo "git-bisect $state $rev" >>"$GIT_DIR/BISECT_LOG"
 }
 

git-cvsimport.perl

@@ -164,7 +164,7 @@ sub read_repo_config {
 
 our @mergerx = ();
 if ($opt_m) {
-	@mergerx = ( qr/\W(?:from|of|merge|merging|merged) (\w+)/i );
+	@mergerx = ( qr/\b(?:from|of|merge|merging|merged) (\w+)/i );
 }
 if ($opt_M) {
 	push (@mergerx, qr/$opt_M/);

git-sh-setup.sh

@@ -119,7 +119,7 @@ get_author_ident_from_commit () {
 	}
 	'
 	encoding=$(git config i18n.commitencoding || echo UTF-8)
-	git show -s --pretty=raw --encoding="$encoding" "$1" |
+	git show -s --pretty=raw --encoding="$encoding" "$1" -- |
 	LANG=C LC_ALL=C sed -ne "$pick_author_script"
 }
 

t/t3404-rebase-interactive.sh

@@ -340,4 +340,26 @@ test_expect_success 'rebase a commit violating pre-commit' '
 
 '
 
+test_expect_success 'rebase with a file named HEAD in worktree' '
+
+	rm -fr .git/hooks &&
+	git reset --hard &&
+	git checkout -b branch3 A &&
+
+	(
+		GIT_AUTHOR_NAME="Squashed Away" &&
+		export GIT_AUTHOR_NAME &&
+		>HEAD &&
+		git add HEAD &&
+		git commit -m "Add head" &&
+		>BODY &&
+		git add BODY &&
+		git commit -m "Add body"
+	) &&
+
+	FAKE_LINES="1 squash 2" git rebase -i to-be-rebased &&
+	test "$(git show -s --pretty=format:%an)" = "Squashed Away"
+
+'
+
 test_done

t/t7502-status.sh

@@ -17,6 +17,9 @@ test_expect_success 'setup' '
 	: > dir1/tracked &&
 	: > dir1/modified &&
 	git add . &&
+
+	git status >output &&
+
 	test_tick &&
 	git commit -m initial &&
 	: > untracked &&
@@ -28,6 +31,12 @@ test_expect_success 'setup' '
 	git add dir2/added
 '
 
+test_expect_success 'status (1)' '
+
+	grep -e "use \"git rm --cached <file>\.\.\.\" to unstage" output
+
+'
+
 cat > expect << \EOF
 # On branch master
 # Changes to be committed:
@@ -51,7 +60,7 @@ cat > expect << \EOF
 #	untracked
 EOF
 
-test_expect_success 'status' '
+test_expect_success 'status (2)' '
 
 	git status > output &&
 	git diff expect output

upload-pack.c

@@ -620,6 +620,9 @@ int main(int argc, char **argv)
 
 	if (i != argc-1)
 		usage(upload_pack_usage);
+
+	setup_path(NULL);
+
 	dir = argv[i];
 
 	if (!enter_repo(dir, strict))

wt-status.c

@@ -60,7 +60,7 @@ static void wt_status_print_cached_header(struct wt_status *s)
 {
 	const char *c = color(WT_STATUS_HEADER);
 	color_fprintf_ln(s->fp, c, "# Changes to be committed:");
-	if (s->reference) {
+	if (!s->is_initial) {
 		color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
 	} else {
 		color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");